To view a PDF of the Text Messenger Fact Sheet click on the link :: Text Messenger Fact Sheet

The Text Messenger has the ability to continuously monitor power supply. In the event of a power failure a text message will be sent immediately via mobile phone. A second message will be sent once the supply has been re-connected. Text Messenger also has the ability to report on up to 8 additional inputs.
 

Technical Specification

Communications

Standard Modem GSM 900/1800 (dual band) integrated modem. Requires a data enabled SIM card. Antenna On board stub antenna. Can be replaced by external antenna and lead.

Inputs

• 24 x direct connections of which 12 may be opto isolated inputs.
• Type - Normally Open / Closed NO/NC is software selectable.
• Programmable activity monitor is software selectable (1-255 state changes).
• Programmable Latching input (NO/NC) is software selectable, reset programmable 1-255 seconds.
• Minimum time required to detect input operation (i.e. debounce) 20 ms (debounce).
• Directly connected inputs Non-isolated, switched to zero volts. Input terminals High Density Connector.
• Maximum conductor size 24 awg.
• On board Event Logs Memory 100 (expandable if required).
• On board Comms Event Logs 100 (expandable if required).
• Memory.
   

Messages

• Digital Inputs - 16 programmable messages up to 32 characters each, expandable to 48 messages.
• AC Monitoring - 2 programmable messages up to 32 characters each.
• On board Regulator Monitoring  - 2 messages up to 32 characters each.
• Float charged battery - 2 programmable messages up to 32 characters each.
• Cold Start - 1 programmable message up to 32 characters .
• Site Name - 1 programmable message up to 32 characters.

Message Sending

• Mobile Numbers up to 3 mobile numbers configurable (must be capable of accepting SMS text).
• Re-sends Programmable 1-6 for alarms. Interval between resends programmable at 15, 30 or 60 minutes.

Power Supply

• External Supply  - 230/115v ac, switch selectable, 1A fused nominal power 100 mWatts.
• Battery specification  - Double ‘D’ "Cyclon" sealed lead acid 2.5Ah 4V 78w x 68h x 44d.
• Current consumption  - Quiescent: 1 mA.
• TX/RX: 200mA to 600mA at 4V dc.
• Max. charge 800mA. Current limited by mains PTC and dc regulator.

Enclosure

• Rating - IP66, fitted with Vent to IPX4.
• Material - Non Flammable Polycarbonate, colour RAL 7035.
• Dimensions - 182mm (h) x 180mm (w) x 90mm (d).
• Mounting - 4 x M4 (5mm diameter) wall mounting holes. Holes located outside watertight seal. Holes at 115mm vertical and horizontal centres.
• Standard Cable Entry -  Mains: 1 x 20mm hole fitted with IP66 cable entry gland. Gland accepts cable diameters in range 5mm to 10mm. Inputs: 1 x M25 hole fitted into IP68 cable entry gland accepts cable diameters in range 6mm to 13mm.

General

• Approx. Weight (inc. modem and stub antenna) 1 Kg.
• Operational temp range –20’C to +55’C (GSM Modem) -40’C to +70’C (Messenger unit).
• Retry Algorithm (in case of failed calls/busy Host) 10 retries at approximately 1 minute intervals, per mobile.

The following are also available :: Messenger Configuration Kit      Messenger RSSI Measurement Kit      Messenger Training